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LDL Cholesterol, Direct

Tube Type = Mint Green Top

Tube Type

Test ID LAB102
EPIC ORER LDL CHOLESTEROL, DIRECT
CPT Code(s) 83721
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station Routine: 30; Stat: 888
Specimen Routine: 1 mL blood/green lithium heparin gel tube. Also acceptable gold SST or red plain tube
Micro: 0.5 mL blood/mint green top bullet/gold top/red top
Stability



 Unspun: 4 hours
Spun/Separated,
Room Temp:		 8 hours
Spun/Separated,
Refrigerated:		 5 days
Frozen: 14 days
Availability Routine: 24 hrs/day
STAT: YES
Turnaround Time STAT: 1hr
Routine: 2hrs
Reference Range Normal:
LDL-Cholesterol, Direct 
Adults (>18 yrs) <100 mg/dL
Pediatrics (≤18 yrs) <120 mg/dL
Comments: Test must be ordered separately; it is not included in the Lipid Panel

Reviewed by J. Carr on January 05, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514